Device for forming stave-casks.



PATENTED APR. 18, 1905.

J. TROPF.

DEVICE FOR FORMING STAVE GASKS.

APPLICATION FILED DEO.1, 1904.

Patented April 18, 1905.

UNITED STATES ATENT @FFIcE.

JULIUS TROPF, OF FRANKENIHAL, GERMANY.

DEVICE FOR FORMING STAVE-CASKS.

SPECIFICATION forming part of Letters Patent No. 787,807, dated April 18, 1905.

Application filed December 1, 1904. Serial No. 235,050.

To a]? whom it 71m concern:

Be it known that I, JULIUS Tnorr, manufacturer, of Frankenthal, in the Kingdom of Bavaria, German Empire, have invented an Improved Device for Forming Stave-Casks, of which the following is a specification.

Myinvention relates to such devices as consist of a number of strong flexible strips which are placed as a protecting-cover over the staves of the cask and bent conjointly with the staves, whereby the staves are prevented from breaking.

My device essentially contains a number of steel strips. These are fastened at one end to a common hoop, and they are made in the form of staves.

The object of my invention I have illus trated in the accompanying drawings, in which Figure 1 is a side elevation, and Fig. 2 a plan. Figs. 3 to 5 show, in side elevation, the device in use.

Referring to the drawings,the device es scntially consists of a number of steel strips 1), which are fastened at one end to a common hoop (1. The strips are made in the form of cask-staves. Preferably the hoop is suspended on a chain in order to facilitate lifting.

In the process of making a cask with my device, Figs. 3 to 5, the staves (Z of which the cask is to be formed are at first placed in an upright position. Their upper ends are brought close together by an auxiliary hoop c. Then the device is pushed over the staves, their upper and lower ends being thereby left free. The device is then contracted in the middle of its length by a steel band 0. This latter is provided with a screw-boltf, which keeps the two ends of the band together. Between the head of the bolt and one end of the band a spiral spring 9 is arranged in order to produce a certain elasticity during contraction. The lower free ends of the strips 7) of the device then are caused to contract in the usual way by a rope h or the like, whereby also the ends of the staves are brought close against each other. In this position an auxiliary hoop is pushed over them, and then the device can be removed.

Having now described the nature of my invention, what I claim is- 1. In a device for forming stave-casks the combination of a number of strong flexible strips and a common hoop keeping all the strips at their upper end in position, as and for the purpose specified.

2. In a device for forming stave-casks the combination of a hoop, a number of strong flexible strips fastened with their upper end to the hoop, and a suspending device attached to the latter, as and for the purpose specified.

3. In a device for forming stavccasks the combination of a hoop, a number of strong flexible steel strips made in the form of staves fastened with their upper end to the hoop, and a suspending device attached to the latter, as and for the purpose specified.

+1. In a device for forming stavc-casks the combination of a hoop, a number of steel strips made in the form of staves fastened with their upper ends to the hoop, means causing the contraction of the strips in the middle of their length, and a suspending device attached to the hoop, as and for the purpose specified.

5. In a device for forming stave-casks the combination of a hoop, a number of steel strips made in the form of staves fastened with their upper ends to the hoop, a band causing the contraction of the strips in the middle of their length, means to produce a certain elasticity in the contraction, and a suspending device attached to the hoop, as and for the purpose specified.

6. In a device for forming stave-casks the combination of a hoop, a number of steel StIl)S made in the form of staves fastened with their upper end to the hoop, a band causing the contraction of the strips in the middle of their length, a spiral spring arranged on the contracting screw-bolt of said band, and a suspending device attachedto the hoop, as and for the purpose specified.

JULIUS TROPF.

IVitnes'ses II. WV. HARRIS, Jos. II. Laura. 

